/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineLeaderboardInterface.h
Interface definition for the online services leaderboard services
class IOnlineLeaderboards
FOnLeaderboardF...
OnLeaderboardFlushCompleteDelegates
Delegate called when the stats flush operation has completed
FOnLeaderboardR...
OnLeaderboardReadCompleteDelegates
Notifies the interested party that the last stats read has completed